[nvfoa15]

In both plays the ball will be placed on the appropiate yardline (after measurement - B should accept the foul); it will be 1/10 for A, the clock will start on the snap (scoring down), and A retains its right to free kick or snap (6-5-4). This is fairly straight foward for the first play. In the second, there is the consideration of the LOD aspect of the illegal forward pass. Remember, LOD is loss of the "right to replay a down"(2-7-2). The LOD aspect of a penalty "has no significance ... if the line to gain has been reached after enforcement."(5-2-2, Fundamental X,9). Since the LOD is ignored, A retains the right to replay the down after enforcement (even though a new series is awarded) and, thus, retains the right of the Fair Catch options outlined in 6-5-4.

I see the basic question as this: Does the acceptance of a penalty mean that the down is replayed. I believe 5-2-2 answers that question as Yes!

Edited to correct rule reference.